Unit 6: DNA & Protein Synthesis
A DNA sequence is AAGGTTCC. What are the complementary DNA bases?
TTCCAAGG
True or False: Before a cell goes through the cell cycle and divides, it was to replicate its DNA.
How is GENOTYPE different than PHENOTYPE?
genotype describes the genetic makeup/alleles of an individual; phenotype describes the physical/observable traits
Write down three variations present in the human population in our classroom.
eye color, hair color, skin tone, height, freckles, etc...
Biology 102
A DNA triplet is GTC. What are the complementary mRNA bases?
C A G
Why do cells need to divide? What is this process accomplishing for an organism?
-Growth
-Healing a wound
-Replacing dead or damaged cells
Rolling your tongue (R) is dominant over not rolling your tongue (r). What is the word that describes the "not rolling" allele?
Recessive
A tongue rolling mom and a tongue rolling dad have a child that can't roll their tongue. What must their genotypes be?
Rr x Rr
1. Which Nitrogen base is found in RNA and not in DNA?
2. What DNA base is it complementary to?
1. U / Uracil
2. A / Adenine
How many cells are produced through the cell cycle?
Two
Tongue rolling (R) is dominant over not rolling your tongue (r).
1. What is the homozygous dominant genotype?
2. What would the phenotype be for this individual?
1. RR
2. Tongue roller
What are 3 examples of selective pressures?
Limited resources, mates, predators, prey, natural disasters, disease, weather
Create a Punnett Square that shows the cross between a heterozygous mom and a homozygous recessive dad.
Rr x rr
= Rr and rr genotypes for possible offspring
Grab your codon wheel - what amino acid is coded for by the mRNA codon A C C?
Threonine
What was the name of your student teacher in the fall?
Mr. O'Malley
What vocab word describes the genotype Rr?
Heterozygous
Draw a picture of a rock pocket mouse.
:-)
Create a pedigree that shows two parents and two kids - an older son and younger daughter. Both parents and their daughter show the dominant trait. The son shows the recessive trait.
Brother rr Sister RR or Rr
A DNA triplet is G G C.
1. What is the complementary mRNA?
2. What amino acid does it code for?
1. C C G
2. Proline
If a cell has 50 chromosomes, how many chromosomes should be in the daughter cells produced by the cell cycle?
50!
Hooray!
1. True or False: Variations are always adaptations.
2. True or False: Adaptations are always variations.
1. False
2. True
What candy were Rock Pocket mice compared to?
Snickers